This week, it's all change at the top as Google and Apple change CEOs. There's a spat between Oracle and Google over intellectual property, and Joel Spolsky of Stack Overflow presents his question and answer site

Google CEO Eric Schmidt discusses privacy issues, the future of newspapers and the company’s problems in China, and takes questions from an audience at the Guardian’s Activate conference on the future of the web. Martha Lane Fox and Beth Noveck discuss their jobs digitally engaging the UK and US, while Nigel Shadbolt talks about his quest to open up more government data